Whatever way you see it, vulnerable road users are sick to the back teeth of being driven at, crashed into, abused, close-passed, tail-gated and generally endangered on the road by drivers that are complete twunts. And you seem to want cammers to back off filming said twunts because of their 'privacy'?
I, like a good number of very experienced cyclists on here, couldn't give a rat's @rse about the 'privacy' of some nobber in a car. A vulnerable road user's safety trumps their privacy every time. And as a responsible driver, I don't give a toss either about the cyclist at the lights with the camera filming because, surprise to you as it may be, I am highly unlikely to ever be a subject of one of their films. And, perish the though that I ever were to be the main feature, my acute embarrassment over 15 mins of online fame is nothing to the possible harm I could have inflicted on a human being due to my driving.
The anti-cammer voice out there is nothing to do with privacy, or confrontation, it's more to do with the majority of bad drivers not wanting to be made responsible for their actions. And I don't know about you, but I find the very idea that a driver with 1 ton + of high speed metal under their control wanting to be absolved of responsibility for their actions wholly abysmal.